`S37.029A` Major contusion of unspecified kidney, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S37.029 with 7th character A (initial encounter).

Applies from S37 Injury of urinary and pelvic organs

Excludes1 (never code together)

obstetric trauma to pelvic organs (O71.-)

Excludes2 (not included here)

injury of peritoneum (S36.81)
injury of retroperitoneum (S36.89-)

Code also

any associated open wound (S31.-)

7th character note

The appropriate 7th character is to be added to each code from category S37

7th character required

A — initial encounter
D — subsequent encounter
S — sequela

Applies from S37.0 Injury of kidney

Excludes2 (not included here)

acute kidney injury (nontraumatic) (N17.9)

Applies from S37.02 Major contusion of kidney

Applicable to

Contusion of kidney greater than 2 cm

Medicare Code Edits (MCE v43.1 (April 2026))

Unspecified code (laterality): Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.

Code annotations containing back-references to S37.029A

Back-references to S37.0

Type 2 Excludes: N17.9 Acute kidney failure, unspecified ("traumatic kidney injury (S37.0-)")

Back-references to S37

Use Additional: S38.1 Crushing injury of abdomen, lower back, and pelvis ("injury to urinary and pelvic organs (S37.-)")

Nearby codes

S37.022 Major contusion of left kidney
S37.022A Major contusion of left kidney, initial encounter
S37.022D Major contusion of left kidney, subsequent encounter
S37.022S Major contusion of left kidney, sequela
S37.029 Major contusion of unspecified kidney
S37.029A Major contusion of unspecified kidney, initial encounter (this code)
S37.029D Major contusion of unspecified kidney, subsequent encounter
S37.029S Major contusion of unspecified kidney, sequela
S37.03 Laceration of kidney, unspecified degree
S37.031 Laceration of right kidney, unspecified degree
S37.031A Laceration of right kidney, unspecified degree, initial encounter